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Stock-Based Compensation Plan (Tables) | 6 Months Ended
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Jun. 30, 2018
Stock-Based Compensation Plan [Abstract] |
Summary of option activity with respect to employees and independent directors |
|  | Number of Shares |  |  | Average Exercise Price per Share |  |  | Weighted Average Remaining Contractual Term in Years |
Outstanding at January 1, 2016 |  |  | 4,000 |  |  | $ | 10.2 |  |  |  | 4.77 |
Exercisable at January 1, 2016 |  |  | 4,000 |  |  |  | 10.2 |  |  |  | 4.77 |
Granted |  |  | - |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | - |  |  |  | - |  |  |  | - |
Outstanding at December 31, 2016 |  |  | 4,000 |  |  |  | 10.2 |  |  |  | 3.77 |
Exercisable at December 31, 2016 |  |  | 4,000 |  |  |  | 10.2 |  |  |  | 3.77 |
Granted |  |  | 5,000 |  |  |  | 1.6 |  |  |  | 10 |
Exercised |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | - |  |  |  | - |  |  |  | - |
Outstanding at December 31, 2017 |  |  | 9,000 |  |  |  | 5.4 |  |  |  | 6.41 |
Exercisable at December 31, 2017 |  |  | 9,000 |  |  |  | 5.4 |  |  |  | 6.41 |
Granted |  |  | - |  |  |  | - |  |  |  | - |
Exercised |  |  | - |  |  |  | - |  |  |  | - |
Forfeited |  |  | - |  |  |  | - |  |  |  | - |
Outstanding at June 30, 2018 |  |  | 9,000 |  |  | $ | 5.4 |  |  |  | 6.16 |
Exercisable at June 30, 2018 |  |  | 9,000 |  |  | $ | 5.4 |  |  |  | 6.16 |

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